A printing device, a production unit and a production method of electronic parts suitable for production of precise electronic parts are provided. An access router may permit or deny a packet based on at least a portion of a unique bit string which replaced layer 2 header information address). The first and third magnet assemblies define a space between them in a second direction that is substantially perpendicular to the first direction. Electrodes provided on the semiconductor element are electrically connected with top ends of the electrically conductive portions via wires, respectively. The method may include moving the cam, creating an opening in the wall of the target vessel with the integrated tool; and advancing an anastomosis device at least partially into the opening with the integrated tool, where moving the cam causes both the creating of the opening and the advancing of the anastomosis device. In speech coding method according to a code-excited linear prediction speech coding, a noise level of a speech in a concerning coding period is evaluated by using a code or coding result of at least one of spectrum information, power information, and pitch information, and various excitation codebooks are used based on an evaluation result.